Abstract: The aircraft (10) comprises a fuselage (11) and a rhombohedral wing structure (12) comprising front wings (13, 14) mounted on a front wing-root support (17) and rear wings (15, 16) mounted on a rear wing-root support (18). At least two wings (13, 14) support an engine (24, 26) provided with a propeller (25, 27). The rear end of the fuselage supports an engine (21) provided with a propeller (22). The aircraft comprises means (28 to 35) for tilting said engines, the rotary shaft of each of the propellers being tilted between an orientation parallel to the main axis of the fuselage and an orientation perpendicular to the main axis of the fuselage and to an axis extending through the ends of the front wings.

Abstract: The aircraft (10) comprises a fuselage (11) and a rhombohedral wing structure (12) comprising front wings (13, 14) mounted on a front wing-root support (17) and rear wings (15, 16) mounted on a rear wing-root support (18). One end of each front wing is articulated to one end of a rear wing and at least one of the wing-root supports is able to move along the fuselage. The wing-root supports (17, 18) are positioned respectively underneath and on top of the fuselage (11). The length (41) of the rear wings (15, 16) is strictly less than the length (48) of the front wings (13, 14). The aircraft (10) comprises an adaptor for adapting the position of each wing root (17, 18) to suit the flight conditions.

Abstract: The aircraft (10) comprises a fuselage (11) and a rhombohedral wing structure (12) comprising front wings (13, 14) mounted on a front wing-root support (17) and rear wings (15, 16) mounted on a rear wing-root support (18). At least two wings (13, 14) support an engine (24, 26) provided with a propeller (25, 27). The rear end of the fuselage supports an engine (21) provided with a propeller (22). The aircraft comprises means (28 to 35) for tilting said engines, the rotary shaft of each of the propellers being tilted between an orientation parallel to the main axis of the fuselage and an orientation perpendicular to the main axis of the fuselage and to an axis extending through the ends of the front wings.

Abstract: The aircraft (10) comprises a fuselage (11) and a rhombohedral wing structure (12) comprising front wings (13, 14) mounted on a front wing-root support (17) and rear wings (15, 16) mounted on a rear wing-root support (18). One end of each front wing is articulated to one end of a rear wing and at least one of the wing-root supports is able to move along the fuselage. The wing-root supports (17, 18) are positioned respectively underneath and on top of the fuselage (11). In some embodiments, the length (41) of the rear wings (15, 16) is strictly less than the length (48) of the front wings (13, 14), the angle (42) formed between the main longitudinal axis (44) of the fuselage (11) and the main axis (43) of the rear wings therefore being, in all flight configurations, more obtuse than the angle (46) formed between the main longitudinal axis of the fuselage and the main axis (45) of the front wings.